CN103890775A - Hand-guided marking system - Google Patents

Hand-guided marking system Download PDF

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Publication number
CN103890775A
CN103890775A CN201280046529.6A CN201280046529A CN103890775A CN 103890775 A CN103890775 A CN 103890775A CN 201280046529 A CN201280046529 A CN 201280046529A CN 103890775 A CN103890775 A CN 103890775A
Authority
CN
China
Prior art keywords
hand
beam source
protective cover
marking equipment
workpiece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201280046529.6A
Other languages
Chinese (zh)
Other versions
CN103890775B (en
Inventor
马里奥·吉泽
斯特凡·贝特霍尔德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of CN103890775A publication Critical patent/CN103890775A/en
Application granted granted Critical
Publication of CN103890775B publication Critical patent/CN103890775B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36Removing material
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K1/00Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/12Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
    • G06K1/126Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching by photographic or thermographic registration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/03Observing, e.g. monitoring, the workpiece
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/03Observing, e.g. monitoring, the workpiece
    • B23K26/032Observing, e.g. monitoring, the workpiece using optical means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08Devices involving relative movement between laser beam and workpiece
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08Devices involving relative movement between laser beam and workpiece
    • B23K26/0869Devices involving movement of the laser head in at least one axial direction
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36Removing material
    • B23K26/361Removing material for deburring or mechanical trimming
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36Removing material
    • B23K26/362Laser etching
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K5/00Methods or arrangements for verifying the correctness of markings on a record carrier; Column detection devices

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Laser Beam Processing (AREA)

Abstract

A hand-guided marking system (1) is disclosed, which is furnished with a beam source (2) for applying a marking (100) to a surface (101) of a workpiece (102). A camera (4) and at least one illumination device (6) are used for recording a part of the surface (101) of the workpiece (102). A protective housing (10) is mounted on a carrier frame (12) and has an opening (14) in the protective housing (10) that is located opposite the surface (101) of the workpiece (102). The beam source (2) is positioned in the carrier frame (12) in such manner that an optical axis (16) of the beam source (2) passes through the opening of the protective housing (10).

Description

Hand-held marking equipment
Technical field
The present invention relates to a kind of hand-held marking equipment.The hand-held marking equipment that in particular, the present invention relates to following design, that is, this hand-held marking equipment utilizes beam source that mark is applied on the surface of workpiece.In addition, this hand-held marking equipment is provided with camera and at least one lighting device at least a portion illumination to surface of the work.
Background technology
Be known in and on workpiece, apply secure ID by prior art.Conventionally, this secure ID is applied on surface of the work by laser instrument.This secure ID in other words mark is known as " data matrix code " (DMC).
By a kind of known method for checking data square matrix code of German patent application file DE102008000503A1.During process, mark is being applied on workpiece.By this mark, workpiece can for good and all be recognized.The mark applying for verification and camera is connected with laser instrument marking equipment.The data matrix code that utilizes this camera to read to be applied on workpiece and with object code comparison and verification.
German patent application file DE10153943A1 discloses a kind of laser marking machine and a kind of for apply the method for square matrix code on object.This equipment comprises for generation of swashing the laser instrument of beam and the pilot unit for the mark region inner focusing on object or workpiece and the sharp beam of guiding.
In addition, also comprise reader in order to recognize the square matrix code laser marking machine of reading to produce on object.The visual field of reader can at least be adjusted by pilot unit in the part of the Cover matrix code in mark region.For by laser deflection to mark region or for simultaneously by light from mark regional guidance to reader, in light path, be provided with dichroic beam splitters (dichroitischer Strahlteiler).
German patent application file DE10308684A1 discloses a kind of method of two-dimensional matrix code being carried out controlling of quality with image processor on metal works.Square matrix code is incorporated on metal works with the form of gauge point.The punching course of gauge point is according to realizing by marking tool digital position data given in advance.Next, by image processor only by position data position given in advance to surveying for the respective image data checking.
U.S. Patent application US2004/0099724A1 openly has the workpiece of the data carrier can machine reading.Data carrier comprises two-dimensional matrix code.Two-dimensional matrix code is made by boring opening on workpiece.Machining is preferred, because the burning of encoding by laser instrument can cause the structural change of metal quarter.Before being held by fixture in order to apply square matrix code at workpiece, square matrix code detects by reader.
DE10059246A1 relates to a kind of marking equipment equally, and wherein, the beam source that transmitting swashs beam is arranged in enclosure interior.In addition, have scanister in housing, this device makes to swash beam deflection in protective cover.
By the known another kind of marking equipment of DE19915071A1, wherein, beam source in protective cover internal placement in guide portion, rather than as being arranged in the carrier of protective casing outside according to the marking equipment described in Patent right requirement 1.
Summary of the invention
Task of the present invention is to realize a kind of hand-held marking equipment, wherein, can lay different beam source and meet the safety condition for laying beam source in simple mode.
This task is solved by the hand-held marking equipment of the feature that comprises claim 1.
Hand-held marking equipment is at carrier place carrying protective cover.Protective cover is configured with opening, and this opening is opposite to the surface that should introduce mark of workpiece.Beam source can be incorporated in carrier as follows, that is, the optical axis of beam source extends through the opening ground of protective cover.
Beam source is laser instrument, and this laser instrument in carrier is assemblied in laser stent.Laser stent has laser base board, and this laser base plate carries multiple induction elements for inserting beam source.In addition, laser base board is formed with opening, and this opening is used at least a portion of the optical element that holds beam source.
Laser stent is provided with at least one for manually operated handle component.In addition can additionally be fastened with the suspender for mechanical operation.By suspender, hand-held marking equipment can drop to should be executed on tagged workpiece in its surface.Preferred mode is that mark to be applied is data matrix code (DMC).In order to detect the quality of the mark applying, camera is installed at protective cover place.Survey from the light of surface of the work reflection and also therefore applied mark is imaged onto to taking pictures chip of camera by camera.For one of skill in the art self-evidently, camera comprises the optical element required for imaging.
In the inside of protective cover, pivotable mirror is installed.Pivotable mirror can be pivoted to primary importance and the second place.In primary importance, arrive the surface of workpiece along the optical axis of beam source from the light of beam source, to implement there corresponding mark.Arrange as follows mirror in the second place, that is, stopped and the light that returns from surface of the work points to towards camera from the light of beam source.
Protective cover itself has underframe sheet, in this underframe sheet, is provided with the opening that the light for making beam source passes.The opening of the underframe sheet of protective cover is opposite to the surface of workpiece.At least one safety starter is installed at least one outer wall place at protective cover.Safety starter is determined: whether hand-held marking equipment reference work object is in correct location.Therefore, stoped the light of beam source to overflow from protective cover, and closed beam source in the time that protective cover is not correctly settled.Because making beam source, the signal of safety starter is closed.Another possibility is that due to the signal of safety starter, mirror is pivoted to the second place, and is therefore stopped from the light of beam source.
Lighting device is arranged at least one inwall of protective cover, so that the diffused illumination that is provided for taking pictures by camera.
Lay laser instrument in order to apply secure ID on surface of the work and be used as beam source.Secure ID is called as data matrix code (DMC).In order to apply secure ID mark and use mobile device in other words.Hand-held marking equipment according to the present invention is provided with protective cover.This protective cover comprises all required safety features (especially safety starter).Camera is used for checking the secure ID that is implemented into surface of the work, and is directly installed on protective cover for this reason.Hand-held marking equipment is particularly suitable for the laser marking of bulk storage plant, wherein, and because the size in warehouse is unworthy building respective stationary and fixing protective cover or facility in order to make workpiece be provided with laser marking.
Accompanying drawing explanation
Next describe by reference to the accompanying drawings embodiment, the present invention and their advantage in detail.Size is not in the drawings always corresponding to actual size, because some shapes are simplified, and other shapes to be exaggerated and to illustrate with respect to other elements in order to represent better.Wherein:
Fig. 1 illustrates according to the three-dimensional view of hand-held marking equipment of the present invention;
Fig. 2 illustrates the three-dimensional view of carrier from top, wherein, do not lay beam source in carrier;
Fig. 3 illustrates the three-dimensional view of carrier from below, wherein, can see the opening on the underframe sheet of protective cover;
Fig. 4 illustrates the sectional view of the protective cover of hand-held marking equipment, and wherein, pivotable mirror is in primary importance;
Fig. 5 illustrates the sectional view of the protective cover shown in Fig. 4, and wherein, pivotable mirror is in the second place;
Fig. 6 illustrates the explanatory view of a part for workpiece, wherein, has introduced mark on surface of the work.
For of the present invention identical or act on the same Reference numeral of identical element application.In addition, for simplicity's sake, only at the Reference numeral that needs to describe respective drawings shown in each accompanying drawing.
Embodiment
Fig. 1 illustrates according to the three-dimensional view of hand-held marking equipment 1 of the present invention.Hand-held marking equipment 1 is made up of the beam source 2 that is embodied as laser instrument.In addition, hand-held marking equipment 1 comprises camera 4, by this camera can read verification be in other words applied to mark 100(on the surface 101 of workpiece 102 to this referring to Fig. 6).In addition, hand-held marking equipment 1 is provided with protective cover 10.Protective cover 10 is assemblied on carrier 12.Lay beam source 2 at the upper area of carrier 12.Beam source 2 is carried by laser base board 18, and this laser base board 18 is parts of laser stent 15.Laser stent 15 is connected with carrier 12.On laser base board 18, arrange multiple induction elements 20, realize the side direction guiding to beam source 2 by described induction element.Equally, make the orientation of beam source 2 in hand-held marking equipment 1 become easy by induction element 20.In the upper area of hand-held marking equipment 1, be provided with at least one handle component 24.By at least one handle component 24, hand-held marking equipment 1 can be with reference to the surface of workpiece 102 101 ground orientations.
In addition, be provided with suspender 26 in order to support the operation of hand-held marking equipment 1, can realize the mechanical operation of hand-held marking equipment 1 by this suspender.Therefore; for the user, can realize hand-held marking equipment 1 by the acting in conjunction of handle component 24 and suspender 26 and should introduce mark 100 thereon with reference to the surperficial 101(of workpiece 102) the convenience, the location of simple and protection user safety of part.
In the region on surface 101 protective cover 10, that be opposite to workpiece 102, be provided with underframe sheet 36.Between underframe sheet 36 and laser base board 18, introduce pole 17, this pole is firm for the additional machinery of hand-held marking equipment 1.In embodiment shown here, protective cover 10 rectangular area structures.Safety starter 39 is arranged at least one outer wall 10A of protective cover 10.By safety starter 39 realized check and definite hand-held marking equipment 1 to the correct arrangement for the treatment of on the workpiece 102 of mark.Safety starter 39 can be configured to induction type approach switch, and this induction type approach switch is monitored voluntarily.Be provided with two this safety starters 39 according to preferred implementation, to check directly to the arrangement for the treatment of on the workpiece 102 of mark.At this, safety starter 39 checks and makes hand-held marking equipment 1 in (being placed in this locational) parts accommodation section.Therefore, hand-held marking equipment 1 or beam source 2 are checked and are placed on workpiece 102.Can realize by the arrangement being checked, the light of beam source can not overflow from the inside of protective cover 10.Therefore, depend on by the confirmation of safety starter 39 and can trigger corresponding action, thereby guarantee the safety verification for the operation of hand-held marking equipment 1.
Fig. 2 illustrates the three-dimensional view of carrier 12 from top observation place.As having mentioned in to the explanation of Fig. 1, under laser base board 18, be provided with protective cover 10.The same carrying camera 4 of protective cover 10.In laser base board 18, be configured with opening 22, at least a portion of the optical element 25 of beam source 2 reaches in this opening (to this referring to Fig. 4 and Fig. 5).Protective cover 10 seals by underframe sheet 36.At least one safety starter 39 is installed at outer wall 10A place at protective cover 10.On protective cover 10, be provided with equally driver 31, mirror 30 by this driver can from primary importance 301 be pivoted to second place 302(to this referring to Fig. 4 and Fig. 5).
In Fig. 3 with the mode of three-dimensional view from below carrier 12 is shown.Underframe sheet 36 is configured with opening 37.Therefore, opening 37 be opposite to the surface 101 of workpiece 102 region arrange, should introduce mark 100 in this region.On at least one inwall 10I of protective cover 10, be provided with at least one lighting device 6.By lighting device 6(to this referring to Fig. 4 and Fig. 5) can illuminate and be applied to the mark 100 of surface on 101, thereby can obtain with camera 4 imaging with enough quality of mark 100.Thus, finally realize the reliable readability to mark 100.
Fig. 4 illustrates the sectional view in the region of hand-held marking equipment 1, and this region illustrates in general protective cover 10.At this, the optical element 25 of beam source 2 is partly through the opening 22 in laser base board 18.Therefore, the optical element 25 of beam source 2 has been fixed optical axis 16, and the light of beam source 2 is propagated along this optical axis.In the figure shown in Fig. 4, mirror 30 is in primary importance 301.Primary importance means: the light being provided by beam source 2 can be propagated in the clear along optical axis 16, and arrives on the surface 101 of workpiece 102 through the opening 37 of underframe sheet 36.
Following situation shown in Figure 5, that is, mirror 30 is pivoted to the second place 302.When mirror 30 is during in the second place, the light of propagating along optical axis 16 of beam source 2 is blocked so.Utilization is arranged on the lighting device 6 at the inwall 10I place of protective cover 10, and the surface 101 of workpiece 102 is illuminated in suitable mode, identifies thereby can realize enough high-qualitys to the mark 100 on the surface 101 at workpiece 102.Arrive camera 4 through the opening 37 underframe sheet 36 along the optical axis 32 of camera 4 from the light of the 101s, surface of workpiece 102.As can be found out by Fig. 4 and Fig. 5, camera 4 utilizes camera case 4G to be arranged on protective cover 10.
Therefore, by mirror 30 from primary importance 30 1(position is carved in writing of beam source 2) is to the second place 30 2pivotable can realize: after writing marking 100 by beam source 2, can detect with camera 4 quality of the mark 100 of writing quarter.Unnecessary to this, hand-held marking equipment 1 is changing with reference to writing the mark 100 at quarter aspect its position.The light of having guaranteed beam source 2 by underframe sheet 36 can not arrive outside.Therefore, in the time of operation hand-held marking equipment 1, guaranteed security laser safety in other words.In addition, underframe sheet 36 has also guaranteed that light can not arrive from outside the inside of protective cover 10, has guaranteed thus the reliable readability to mark 100 by camera 4, because it is not affected from outside stray light.
Reference numerals list
1 hand-held marking equipment
2 beam source
4 cameras
4G camera case
6 lighting devices
10 protective covers
10A protective cover outer wall
10I protective cover inwall
12 carriers
14 openings
15 laser stents
The optical axis of 16 beam source
17 poles
18 laser base boards
20 induction elements
22 openings
24 handle components
25 optical elements
26 suspenders
30 1primary importance
30 2the second place
31 drivers
32 camera optical axises
36 underframe sheets
37 openings
39 safety starters
100 marks
101 surfaces
102 workpiece

Claims (9)

1. a hand-held marking equipment (1), it has the beam source (2) for applying mark (100) on the surface in workpiece (102) (101), camera (4) and at least one lighting device (6) throwing light on at least a portion on the surface (101) to described workpiece (102), it is characterized in that, protective cover (10) is installed on carrier (12), the opening (14) of described protective cover (10) is opposite to the surface (101) of described workpiece (102), and beam source (2) can be installed in described carrier (12) as follows, , the optical axis (16) of described beam source (2) extends through the opening of described protective cover (10) (37).
2. hand-held marking equipment according to claim 1 (1), wherein, described beam source (2) is laser instrument, this laser instrument in described carrier (12) is assemblied in laser stent (15).
3. hand-held marking equipment according to claim 2 (1), wherein, described laser stent (15) has laser base board (18), this laser base board carries multiple induction elements (20) for inserting described beam source (2), and wherein, described laser base board (18) is formed with opening (22), and described opening is used for holding at least a portion of the optical element (25) of described beam source (2).
4. according to the hand-held marking equipment (1) described in claim 2 and 3, wherein, described laser stent (15) is fastened with for manually operated handle component (24) and/or for the suspender (26) of mechanical operation.
5. according to the hand-held marking equipment (1) one of the claims Suo Shu, wherein, at described protective cover (10), described camera (4) is above installed.
6. hand-held marking equipment according to claim 5 (1), wherein, the mirror (30) of energy pivotable is installed in the inside of described protective cover (10), do not stop the light on the optical axis (16) of described beam source (2) at upper this mirror of primary importance (301), and point to towards the surface (101) of described workpiece (102) at the optical axis (32) of the above camera of the second place (302) (4).
7. according to the hand-held marking equipment (1) one of the claims Suo Shu, wherein, described protective cover (10) carrying underframe sheet (36) is configured with opening (37) in this underframe sheet, and this opening is opposite to the surface (101) of described workpiece (102).
8. hand-held marking equipment according to claim 7 (1), wherein, at least one outer wall (10A) at described protective cover (10) locates to be provided with at least one safety starter (39), this safety starter is determined the correct location of described hand-held marking equipment (1) with reference to described workpiece (102), to therefore stop the light of described beam source (2) to overflow from described protective cover (10) and close described beam source (2).
9. according to the hand-held marking equipment (1) one of the claims Suo Shu, wherein, locate to be provided with the lighting device (6) for being taken pictures by described camera (4) in dark field is arranged at least one inwall (10I) of described protective cover (10).
CN201280046529.6A 2011-09-23 2012-06-18 Handheld marking device Expired - Fee Related CN103890775B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011083252A DE102011083252B9 (en) 2011-09-23 2011-09-23 Hand-held labeling system
DE102011083252.1 2011-09-23
PCT/EP2012/061546 WO2013041253A1 (en) 2011-09-23 2012-06-18 Hand-guided marking system

Publications (2)

Publication Number Publication Date
CN103890775A true CN103890775A (en) 2014-06-25
CN103890775B CN103890775B (en) 2017-05-03

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CN201280046529.6A Expired - Fee Related CN103890775B (en) 2011-09-23 2012-06-18 Handheld marking device

Country Status (5)

Country Link
US (1) US9427826B2 (en)
EP (1) EP2758910A1 (en)
CN (1) CN103890775B (en)
DE (1) DE102011083252B9 (en)
WO (1) WO2013041253A1 (en)

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DE102019217506A1 (en) * 2019-11-13 2021-05-20 Trumpf Schweiz Ag Hand-held device with a marking laser and a marking reading device
CN113634908B (en) * 2021-08-23 2023-07-14 珠海格力智能装备有限公司 Conveying system
DE102022132238A1 (en) 2022-05-16 2023-11-16 Stefan Dengler Hand-held laser marking device

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Publication number Publication date
US20140231397A1 (en) 2014-08-21
WO2013041253A1 (en) 2013-03-28
DE102011083252B3 (en) 2012-12-13
CN103890775B (en) 2017-05-03
EP2758910A1 (en) 2014-07-30
DE102011083252B9 (en) 2013-01-03
US9427826B2 (en) 2016-08-30

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